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  Collision of merger and accretion shocks: formation of Mpc-scale contact discontinuity in the Perseus cluster

Zhang, C., Churazov, E., Dolag, K., Forman, W. R., & Zhuravleva, I. (2020). Collision of merger and accretion shocks: formation of Mpc-scale contact discontinuity in the Perseus cluster. Monthly Notices of the Royal Astronomical Society: Letters, 498(1), L130-L13. doi:10.1093/mnrasl/slaa147.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0007-D75B-1 Version Permalink: https://hdl.handle.net/21.11116/0000-0007-D75C-0
Genre: Journal Article

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Collision of merger and accretion shocks formation of Mpc-scale contact discontinuity in the Perseus cluster.pdf (Any fulltext), 2MB
 
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Zhang, Congyao, Author
Churazov, Eugene1, Author           
Dolag, Klaus2, Author           
Forman, William R., Author
Zhuravleva, Irina, Author
Affiliations:
1High Energy Astrophysics, MPI for Astrophysics, Max Planck Society, ou_159881              
2Computational Structure Formation, MPI for Astrophysics, Max Planck Society, ou_2205642              

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 Abstract: Two Mpc-size contact discontinuities have recently been identified in the XMM–Newton and Suzaku X-ray observations in the outskirts of the Perseus cluster (Walker et al.). These structures have been tentatively interpreted as ‘sloshing cold fronts’, which are customarily associated with differential motions of the cluster gas, perturbed by a merger. In this study, we consider an alternative scenario, namely, that the most prominent discontinuity, near the cluster virial radius, is the result of the collision between the accretion shock and a ‘runaway’ merger shock. We also discuss the possible origin of the second discontinuity at ∼1.2Mpc⁠.

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 Dates: 2020-10-01
 Publication Status: Published online
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 Rev. Type: Peer
 Identifiers: DOI: 10.1093/mnrasl/slaa147
Other: LOCALID: 3281127
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Title: Monthly Notices of the Royal Astronomical Society: Letters
  Other : Mon. Not. Roy. Astron. Soc.: Letters
Source Genre: Journal
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Publ. Info: Oxford : Blackwell Science
Pages: - Volume / Issue: 498 (1) Sequence Number: - Start / End Page: L130 - L13 Identifier: ISSN: 1745-3925
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000021470